Is this something that just started or started when SW2016 was installed? What version of Windows are you using?
My first test would be to go into the registry and rename the SolidWorks 2016 key, then restart SolidWorks. If the crashes still happen I would run system maintenance from SolidWorks Rx to clean up files. After that I would probably do a SolidWorks repair. There are also some Windows updates that cause issues with new installs of SW but I do not know what they are or where to find them.